| System for lighting an electronic label display -> Monitor Keywords |
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  System for lighting an electronic label displayThe Patent Description & Claims data below is from USPTO Patent Application 20060164327. Brief Patent Description - Full Patent Description - Patent Application Claims
TECHNICAL FIELD OF THE INVENTION [0001] The present invention relates to an electronic label according to the preamble of claim 1. [0002] It also relates to a product comprising such an electronic label. BACKGROUND OF THE INVENTION [0003] Such an electronic price label is described in for example EP 0228377. In an electronic price updating system like this, price labels are attached to for example the shelves in the store or nearby a product bin The price labels comprise components for wireless communication with a price data base. Each time there is a price change for a product this is communicated out to the price label for this product and the price shown on the display in the price label is changed. Normally LCDs are used as displays. Such LCDs have a reflective backside and thus reflects incoming light and provides a visible display. [0004] A problem with this type of price label is that the visibility sometimes is poor in the display. SUMMARY [0005] An object of the invention is to provide a label with improved visibility. [0006] This object is achieved in a label according to the preamble of claim 1, having the characterizing features of claim 1. [0007] It is also achieved by a product according to claim 10. [0008] Hereby an electronic label is achieved having a display which can be lit up from behind. This gives a display with good visibility. [0009] Suitably the label comprises at least one descriptive part adapted to be attached to the label, said descriptive part comprising static information about the product, said information being provided outside the area of the display. Hereby a label is achieved that is easy to adapt for different purposes and different products and which also comprises static information that is enlightened from the backside and thus has a good visibility. [0010] Preferably the label is adapted to be lit up from behind by an external light source. Hereby an electronic label is achieved that is lit up from behind and where the light source is separated from the price label. This is preferred since no extra power is required in the label itself for the enlightening. [0011] Further advantageous embodiments of the invention are set out in the dependent claims. BRIEF DESCRIPTION OF THE DRAWINGS [0012] FIG. 1 shows a first embodiment of the electronic label according to the invention. [0013] FIG. 2 shows a side view of the embodiment in FIG. 1. [0014] FIG. 3 shows a second embodiment of the electronic label according to the invention. [0015] FIGS. 4a-c show electronic labels according to the invention arranged on a shelf edge rail. DETAILED DESCRIPTION OF EMBODIMENTS [0016] According to the invention an electronic label is provided which comprises a display module which is lit up from behind. The display module comprises a display, which could be an LCD or equal, a controller, a memory, power supply, preferably a battery power supply and a communication interface, preferably a wireless communication interface. The display module is adapted to communicate wirelessly with a central product information updating system as described above in the background of the invention. According to the invention the display is provided with a transparent or semitransparent backside for allowing it to be lit up from behind. Suitably it could be a transflective LCD. The other components of the display module are arranged on a printed circuit board which should be located inside the price label but not covering the display since this would prevent the lightening up of the display from behind. Instead of an ordinary printed circuit board a flexible circuit board could be used. This would be suitable since the flexible circuit board would not need much space. It could be coiled up and be placed on one side of the display. [0017] The electronic label is a label showing different information of a product. Often, but not always, the price of the product is included in this information. Therefore the label is called a price label hereafter in this description. However, other information than price could also be shown on the label and be updated from the updating system. [0018] In one embodiment of the invention the price label is adapted to be lit up from behind by surrounding light normally present in the store, main lighting. In another embodiment the price label is adapted to be positioned in front of a light source, which could be for example fluorescent tubes, electro luminescent film or light emitting diodes. [0019] It would be preferred to keep the light source separated from the price label since the light source would require much more power than the price label. Furthermore it is preferred to have a wireless price label system since it is then easier to move the price label together with the merchandises. It is also preferred to not have to change batteries often. If the light source is built into the price label the power consumption would rise much and batteries have to be changed more often or more powerful and bulky batteries are needed. Continue reading... Full patent description for System for lighting an electronic label display Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this System for lighting an electronic label display patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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